<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    /* 子孙后代选择器*/
   /* body div div p{
      color: red;
    }*/
    /* 子元素选择器  选择一个*/
    body >div >div >p{
      color: cornflowerblue;
    }


  </style>
</head>
<body>
<p>p1</p>
<div><p>p2</p></div>
<div>
  <div> <p>p3</p></div>
  <div>
    <div> <p>p4</p></div>
  </div>
</div>
</body>
</html>